Seems pretty common to me, maybe you are excluded form such perverse conversations incase it hurts your feelings?
This pretty much sums up what Americans are all to eager to espouse on the streets, in their homes and in their churches, regardless of their socialist el president:
http://www.tfpstudentaction.org/politically-incorrect/homosexuality/10-reasons-why-homosexual-marriage-is-harmful-and-must-be-opposed.html
I doubt many americans actually agree with any of the crap in your list.
1. It Is Not Marriage
marriage is a social construct. it does not exist outside of society. marriage used to be 700 wives and 300 concubines. marriaged used to be a woman disappearing in the eyes of the law and all a woman's property became her husbands.
2. It Violates Natural Law
homosexuality is natural. therefore it cannot break natural laws
3. It Always Denies a Child Either a Father or a Mother
no evidence that this in any way harms a child's development.
4. It Validates and Promotes the Homosexual Lifestyle
homosexuality is not a lifestyle. therefore this point is invalid
5. It Turns a Moral Wrong into a Civil Right
there is nothing moral about discrimination. there is nothing morally wrong about homosexuality
6. It Does Not Create a Family but a Naturally Sterile Union
no one is forcing you or anyone else to have a same sex marriage. this point is null and void
7. It Defeats the State’s Purpose of Benefiting Marriage
why should marriage be benefited to the detriment of others in society?
8. It Imposes Its Acceptance on All Society
once again, it's morally wrong to discriminate. people are free not to accept gay marriage and they don't have to have a same sex union.
9. It Is the Cutting Edge of the Sexual Revolution
Could we argue that allowing women to own property and to have a legal self when married was the beginning of the sexual revolution? Maybe limiting marriage to just a single woman was the beginning?
10. It Offends God
I'm sorry it offends your make believe person in the sky. Still, we're a secular democracy so your religious beliefs have no right to enforce their views and ways on the rest of us.
Now religious leaders persecuting minorities probably does offend god. As would molesting children, asking for money to buy the most expensive gulf stream jet for missionary work, and hoarding wealth that could be used to aid the poor. the list goes on for what the putative righteous do that would offend their god, but that's a debate that's not relevant to same sex marriage.